7 158 721 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
62537194534862576857	20	65.8	2012-04-04 12:21:25
519302574671078644278684752288195807	36	118.6	2011-12-23 04:04:56

Status	Date	User	Residue	Shift
Verified (Factored)	2001-12-01	Christer Berg	116E42D52C2CD39C	2500981
Verified (Factored)	2002-07-06	Ars Technica Team Prime Rib	116E42D52C2CD39C	7085946

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2018-02-10	kkmrkkblmbrbk	606BDB2F40BDDC1E	2	1557330	5	3
Verified	2019-03-27	ATH	606BDB2F40BDDC1E	2	821135	5	3

History

Date	User	Type	Result
2019-03-27	ATH	C-PRP	M7158721/519302574671078644278684752288195807/62537194534862576857 : 606BDB2F40BDDC1E PRP: Verified PRP without proof (not generated)
2018-02-10	kkmrkkblmbrbk	C-PRP	M7158721/62537194534862576857/519302574671078644278684752288195807 : 606BDB2F40BDDC1E PRP: Verified PRP without proof (not generated)
2012-04-04	Bdot	F	Factor: 62537194534862576857
2011-12-23	James Heinrich	F-PM1	Factor: 519302574671078644278684752288195807